Band-type brake mold locking turntable injection molding machine

Abstract

The invention relates to the field of injection molding equipment, in particular to a band-type brake mold locking rotary table injection molding machine, and provides a band-type brake mold locking rotary table injection molding machine aiming at the problems that in the prior art, an injection molding part is subjected to adhesion deformation during demolding, and the production quality is affected. The front sides and the rear sides of the left end and the right end of the pressing plate are fixedly connected with mold locking devices respectively, the front sides and the rear sides of the left end and the right end of the fixed mold plate are fixedly connected with connectors connected with the mold locking devices respectively, and the movable mold plate always keeps a pressing state during injection molding; under the self-locking action of the mold locker and the connector, the movable mold plate and the fixed mold plate are kept in a connected state, and a buffering effect before demolding can be provided for injection molding parts in the movable mold plate and the fixed mold plate in the state; and the situation that the production quality of the injection-molded part is affected by unexpected situations such as adhesion, deformation and tearing of the injection-molded part due to sudden pressure loss of the injection-molded part under the inertia effect during demolding is avoided.

Description

Technical Field

[0001] The invention relates to the field of injection molding equipment, in particular to a brake-locking mold turntable injection molding machine. Background Art

[0002] The injection molding machine is the main molding equipment that uses plastic molding molds to make plastic products of various shapes from thermoplastics or thermosetting plastics. It heats thermoplastics or thermosetting plastics to a molten state and injects them into the mold cavity under high pressure. After cooling, the plastic products of the desired shape are formed. It can produce various plastic products at high speed and continuously. It not only has high production efficiency and high precision, but also can ensure quality requirements, making the production of plastic products more efficient, accurate and environmentally friendly.

[0003] When using an injection molding machine, in order to ensure that the movable platen and the fixed platen can maintain tightness of connection under high-pressure injection, it is necessary to ensure the clamping effect of the fixed platen and the movable platen. At present, in order to ensure the quality of the injection molded parts, the clamping force is usually increased through the clamping device, thereby increasing the pressure between the movable platen and the fixed platen, so that the injection molded parts are fully filled during injection and formed in a high-pressure environment. The current clamping equipment generally adopts a mechanical mechanism. In order to ensure production efficiency, the sensitivity and corresponding speed of the clamping equipment are guaranteed, so that the movable platen and the fixed platen are quickly separated when the injection molded parts are demolded. Under the action of inertia, it is easy to cause adhesion and deformation of the injection molded parts, affecting the production quality. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a brake-locked mold turntable injection molding machine, which effectively solves the problems mentioned in the above background technology.

[0005] In order to solve the above problems, the technical solution adopted by the present invention is:

[0006] A brake-locked mold turntable injection molding machine comprises an injection molding machine, a turntable located at the lower side of the injection molding machine, a plurality of fixed mold plates evenly distributed in a ring shape on the upper end of the turntable, and a movable mold plate installed at the lower end of the injection molding machine, wherein the lower end of the turntable is rotatably connected to a base, a protective box is fixedly connected to the rear side of the base, a control structure for controlling the intermittent rotation of the turntable is installed inside the protective box, and each rotation of the turntable drives a fixed mold plate to move to the lower side of the movable mold plate, a mounting frame is fixedly connected to the upper side of the base, a lifting plate that can be lifted and lowered is slidably connected to the inner side of the mounting frame, the injection molding machine is fixedly connected to the lifting plate, and each rotation of the turntable constitutes a structure in which the lifting plate is lifted and lowered once;

[0007] The upper end of the movable template is slidably connected to a pressing plate that can move up and down, the pressing plate is fixedly connected to the lifting plate, the front and rear sides of the left and right ends of the pressing plate are respectively fixedly connected to mold lockers, and the front and rear sides of the left and right ends of the fixed template are respectively fixedly connected to connectors connected to the mold lockers. When the movable template moves downward with the lifting plate and fits with the fixed template, the movable template and the fixed template are locked through the connection between the mold lockers and the connectors.

[0008] Furthermore, the connector includes a fixed plate and ratchet bars slidably connected to both ends of the fixed plate, the ratchet directions of the two ratchet bars are opposite, the upper and lower ends of the fixed plate are fixedly connected to the fixed template and the base, and the upper and lower sides between the ratchet bar and the fixed plate are respectively connected to reset springs;

[0009] The mold locker includes a mounting box and ratchet blocks slidably connected to the corresponding two sides of the inner wall of the mounting box, the ratchet blocks correspond to the ratchet bars on the lower side and can mesh with each other, the upper and lower ends of the two ratchet blocks are respectively fixedly connected with meshing springs, and the other ends of the meshing springs are respectively fixedly connected to the inner wall of the mounting box;

[0010] The outer end surfaces of the ratchet blocks are fixedly connected with inclined plane blocks, and the corresponding ends of the two corresponding inclined plane blocks are respectively provided with guide inclined planes, and the two corresponding guide inclined planes are arranged parallel to each other. The surfaces of the guide inclined planes are respectively slidably matched with inclined plane push blocks that can move up and down, and the surfaces of the inclined plane push blocks are respectively fixedly connected with vertically arranged push rods, and the upper ends of the push rods are respectively fixedly connected to the pressure plates.

[0011] Furthermore, a spring telescopic rod is respectively provided at the upper end of the inclined push block located on the upper side of the guide inclined surface and the lower end of the inclined push block located on the lower side of the guide inclined surface; the spring telescopic rod includes a pushing cylinder and a support rod connected axially in a sliding manner, a supporting spring is fixedly connected between the pushing cylinder and the support rod, an end of the pushing cylinder away from the support rod is pressed against the surface of the inclined push block, and an end of the support rod away from the pushing cylinder is fixedly connected to the inner wall of the mounting box.

[0012] Furthermore, the end of the support rod corresponding to the pushing cylinder is slidably connected to the inside of the pushing cylinder, the support spring is located inside the pushing cylinder, the inner wall of the pushing cylinder is respectively provided with annularly distributed limit grooves, and the circumferential surface of the lower end of the support rod is respectively fixedly connected with a plurality of annularly distributed limit blocks, and the limit blocks are respectively slidably connected to the limit grooves.

[0013] Furthermore, the four corners of the upper end of the fixed template are respectively fixedly connected with vertically arranged positioning holes, and the four corners of the lower end of the movable template are respectively upwardly provided with positioning pins that can be slidably connected with the positioning holes.

[0014] Furthermore, pressure cylinders with an opening at the lower end are fixedly connected at the four corners of the upper end of the pressure plate, and pressure springs are arranged inside the pressure cylinders. Pressure rods are fixedly connected at the four corners of the upper end of the movable template, and spring baffles are fixedly connected at the upper ends of the pressure rods. The spring baffles are slidably connected to the inside of the pressure cylinders, and the pressure springs are located on the upper sides of the spring baffles.

[0015] Furthermore, a plurality of reinforcing brackets are fixedly connected to the upper end of the pressing plate, and the upper ends of the reinforcing brackets are respectively fixedly connected to the lifting plates.

[0016] The present invention has novel structure, ingenious design, simple and convenient operation, and has the following advantages compared with the prior art:

[0017] 1. During injection molding, the movable platen is always kept in a pressure state. During demoulding, the pressure of the movable platen disappears. Under the self-locking action of the mold clamp and the connector, the movable platen and the fixed platen are kept in a connected state. In this state, a buffer effect before demoulding can be provided for the injection molded parts inside the movable platen and the fixed platen, so that the injection molded parts inside the movable platen and the fixed platen are kept stable when they lose part of the pressure first. Then, when the lifting plate drives the pressure plate to move upward, the movable platen is driven to move upward to complete the separation from the fixed platen, and demoulding is realized, which avoids the injection molded parts from suddenly losing pressure during demoulding, which causes the injection molded parts to stick, deform, tear, and other accidents under the action of inertia, affecting the production quality of the injection molded parts;

[0018] 2. During use, the turntable can be driven to rotate intermittently by operating the control structure. After each rotation of the turntable, the lifting plate drives the moving template to move downward once, completing an injection molding operation. Under the action of the control structure, the turntable and the lifting plate can be driven to move alternately to achieve uninterrupted injection molding processing, effectively improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The present invention is a schematic diagram of the overall structure of a brake-locked mold turntable injection molding machine.

[0020] Figure 2 The present invention is a schematic diagram of the installation structure of the fixed platen and the movable platen of a brake-locking turntable injection molding machine.

[0021] Figure 3 This is a first schematic diagram of a control structure of a brake-locked turntable injection molding machine according to the present invention.

[0022] Figure 4 This is a second schematic diagram of the control structure of a brake-locked turntable injection molding machine of the present invention.

[0023] Figure 5 This is a third schematic diagram of a control structure of a brake-locked turntable injection molding machine according to the present invention.

[0024] Figure 6 The present invention is a schematic diagram of a pressure plate installation structure of a brake-locking turntable injection molding machine.

[0025] Figure 7 The present invention is a schematic diagram of the ejector rod installation structure of a brake-locking turntable injection molding machine.

[0026] Figure 8 The present invention is a schematic diagram of the connection structure between the fixed mold plate and the movable mold plate of a brake-locking turntable injection molding machine.

[0027] Fig. 9 The present invention is a schematic diagram of the installation structure of a mold clamp and a connector of a brake-locking turntable injection molding machine.

[0028] Fig.10 This is a first schematic diagram of the matching structure of a mold clamp and a connector of a brake-locking turntable injection molding machine of the present invention.

[0029] Fig.11 This is a second schematic diagram of the matching structure of the mold clamp and connector of a brake-locking turntable injection molding machine of the present invention.

[0030] Fig.12 The present invention is a schematic diagram of the matching structure of an inclined surface push block and an inclined surface block of a brake-locking turntable injection molding machine.

[0031] Numbers in the figure: 1-base, 2-turntable, 3-mounting frame, 4-lifting plate, 5-injection molding machine, 6-fixed template, 7-moving template, 8-pressing plate, 9-protective box, 10-rotating plate, 11-hinged rod, 12-motor, 13-driving dial, 14-first groove wheel, 15-driving gear, 16-second groove wheel, 17-first bevel gear, 18-second bevel gear, 19-first pulley, 20-second pulley, 21-driven gear, 22-pressure spring, 23-pressure cylinder, 24-pressure rod, 25-top rod, 26- The first baffle, 27-slide rod, 28-tension spring, 29-groove, 30-positioning hole, 31-positioning pin, 32-rubber pad, 33-mold locker, 34-connector, 35-installation box, 36-ratchet block, 37-installation rod, 38-engagement spring, 39-inclined block, 40-push rod, 41-ratchet bar, 42-fixed plate, 43-limiting rod, 44-reset spring, 45-pushing cylinder, 46-support rod, 47-support spring, 48-limiting block, 49-inclined push block, 50-guide inclined surface, 51-reinforcement bracket. DETAILED DESCRIPTION

[0032] The following are specific embodiments of the present invention, and the technical solutions of the present invention are further described in conjunction with the accompanying drawings, but the present invention is not limited to these embodiments.

[0033] like Figure 1-12As shown, the present invention provides a brake-locked mold turntable injection molding machine, comprising an injection molding machine 5, a turntable 2 located at the lower side of the injection molding machine 5, a plurality of fixed mold plates evenly distributed in a ring shape on the upper end of the turntable 2, and a movable mold plate 7 installed at the lower end of the injection molding machine 5, and an elastic rubber pad 32 is fixedly connected to the upper end of the fixed mold plate 6. When the movable mold plate 7 is attached to and pressurized with the fixed mold plate 6, the rubber pad 32 can improve the tightness of the connection and provide displacement space for the pressure of the movable mold plate 7 through its own elastic force. The lower end of the turntable 2 is rotatably connected to a base 1, and a protective box 9 is fixedly connected to the rear side of the base 1. A control structure for controlling the intermittent rotation of the turntable 2 is installed inside the protective box 9. Each rotation of the turntable 2 will drive a fixed mold plate 6 to move to the lower side of the movable mold plate 7. A mounting frame 3 is fixedly connected to the upper side of the base 1, and a lifting plate 4 that can be lifted and lowered is slidably connected to the inner side of the mounting frame 3. The injection molding machine 5 is fixedly connected to the lifting plate 4, and each rotation of the turntable 2 constitutes a structure in which the lifting plate 4 is lifted and lowered once;

[0034] When the device is in use, the lifting plate 4 can be operated to move downward to drive the movable template 7 to move downward to cooperate with the fixed template 6 on the lower side, and then the injection molding machine 5 is used for injection molding. During use, the control structure can be operated to drive the turntable 2 to rotate intermittently. After each rotation of the turntable 2, the lifting plate 4 drives the movable template 7 to move downward once, completing an injection molding operation. Under the action of the control structure, the turntable 2 and the lifting plate 4 can be driven to move alternately, so as to realize continuous injection molding operations, thereby effectively improving production efficiency.

[0035] The upper end of the movable template 7 is slidably connected with a pressing plate 8 that can move up and down. The pressing plate 8 is fixedly connected to the lifting plate 4. The pressing plate 8 is used to push the movable template 7 to be squeezed in the direction of the fixed template 6 to improve the tightness of the connection between the movable template 7 and the fixed template 6. The front and rear sides of the left and right ends of the pressing plate 8 are respectively fixedly connected with locking devices 33. The front and rear sides of the left and right ends of the fixed template 6 are respectively fixedly connected with connectors 34 connected to the locking devices 33. When the movable template 7 moves downward with the lifting plate 4 and fits with the fixed template 6, the movable template 7 and the fixed template 6 are locked through the connection between the locking device 33 and the connector 34, thereby improving the tightness and firmness of the connection between the movable template 7 and the fixed template 6, facilitating the connection between the movable template 7 and the fixed template 6 during high-pressure injection molding of the injection molding machine 5, and ensuring the quality of the injection molded parts.

[0036] Furthermore, in order to improve the quality of finished injection molded parts, such as Figure 9-11As shown, the connector 34 includes a fixed plate 42 and ratchet bars 41 slidably connected to the two ends of the fixed plate 42, the ratchet directions on the surfaces of the two ratchet bars 41 are opposite, the upper and lower ends of the fixed plate 42 are fixedly connected to the fixed template 6 and the base 1 respectively, and the upper and lower sides between the ratchet bar 41 and the fixed plate 42 are respectively connected with a reset spring 44, and the upper and lower sides of the corresponding ends of the two ratchet bars 41 are respectively provided with spring grooves toward the outside, and the reset springs 44 are respectively located inside the spring grooves, and the upper and lower sides of the left and right ends of the fixed plate 42 are respectively fixedly connected with a limiting rod 43, and the other ends of the limiting rod 43 are respectively slidably connected to the inner wall of the spring groove, and the ratchet bar 41 moves inward after being squeezed, and the limiting rod 43 is used to limit the ratchet bar 41 so that the ratchet bar 41 can only move along the axial direction of the limiting rod 43, and when the ratchet bar 41 moves, the reset spring 44 can be squeezed by cooperating with the limiting rod 43, and the reset spring 44 can also push the ratchet bar 41 to reset by its own elastic force;

[0037] The mold locker 33 includes a mounting box 35 and ratchet blocks 36 slidably connected to the corresponding inner walls of the mounting box 35 on both sides. The ratchet blocks 36 correspond to the ratchet bars 41 on the lower side and can mesh with each other. Fig.11 As shown, since the ratchet teeth of the two ratchet bars 41 have different directions, the ratchet teeth of the two ratchet blocks 36 also have different directions. When the two ratchet blocks 36 are respectively engaged with the corresponding ratchet bars 41 on the lower side, one ratchet block 36 can only move downward in one direction, and the other ratchet block 36 can only move upward in one direction. When the two ratchet blocks 36 are simultaneously engaged with the corresponding ratchet bars 41, the mounting box 35 cannot move upward and downward and is in a fixed state. The upper and lower ends of the two ratchet blocks 36 are respectively fixedly connected with engagement springs 38. The other end of the engagement springs 38 The ends are respectively fixedly connected to the inner wall of the installation box 35, and the meshing spring 38 is used to push the ratchet block 36 to mesh with the ratchet bar 41. The upper and lower ends of the ratchet block 36 are respectively slidably connected to the installation rods 37, and the outer ends of the installation rods 37 are respectively fixedly connected to the inner wall of the installation box 35. The meshing springs 38 are respectively sleeved on the surface of the installation rods 37. The installation rods 37 are used to provide an installation position and limit the ratchet block 36, so that the ratchet block 36 can only move along the axial direction of the installation rod 37, and the meshing spring 38 can be squeezed when the ratchet block 36 moves;

[0038] The outer end surfaces of the ratchet blocks 36 are respectively fixedly connected with inclined plane blocks 39, and the corresponding ends of the two corresponding inclined plane blocks 39 are respectively provided with guiding inclined planes 50. Fig.11As shown, the two guiding inclined surfaces 50 are oriented in opposite directions, one guiding inclined surface 50 is oriented upward, and the other guiding inclined surface 50 is oriented downward, so that the two corresponding guiding inclined surfaces 50 are arranged parallel to each other, and the surfaces of the guiding inclined surfaces 50 are respectively slidably matched with inclined surface push blocks 49 that can move up and down, and the inclined surface push blocks 49 corresponding to the guiding inclined surfaces 50 are also provided with inclined surfaces for slidingly matching with the inclined surface push blocks 49, and the surfaces of the inclined surface push blocks 49 are respectively fixedly connected with vertically arranged push rods 40, and the upper ends of the push rods 40 are respectively fixedly connected to the pressing plate 8, and when the pressing plate 8 moves up and down, the inclined surface push blocks 49 can be driven by the push rods 40 to move up and down, as shown in FIG. Fig.10 and Fig.11 As shown, when the installation box 35 moves downward with the pressure plate 8, one of the ratchet blocks 36 is in a bite state when it contacts the ratchet bar 41 and cannot move downward. Then, after the installation box 35 is blocked, the pressure rod pushes the inclined surface push block 49 downward through the push rod 40. When the inclined surface push block 49 moves downward, the inclined surface push block 49 on the left can push the inclined surface block 39 on the left to move outward through the sliding cooperation of the guide inclined surface 50, so that the ratchet block 36 on the left is disengaged from the meshing with the ratchet bar 41, and the ratchet block 36 on the right can move downward when it is meshed with the ratchet bar 41 on the right. Therefore, the installation box 35 can move downward smoothly. When the pressure rod is not subjected to force, the inclined surface push block 49 no longer pushes the guide inclined surface 50, and then the ratchet block 36 on the left is reset and meshed with the ratchet bar 41 again, and re-engages on the surface of the ratchet bar 41, completing The connection between the clamping device 33 and the connector 34 is established; when the movable plate 7 and the fixed plate 6 need to be separated, the pressing plate 8 can be directly controlled to move upward, and the ratchet block 36 on the left can move upward in one direction under the meshing of the ratchet bar 41, so the installation box 35 is not affected by the ratchet block 36 on the left when it moves upward. When the pressing plate 8 moves upward, the ratchet block 36 on the right can only move downward in one direction under the meshing of the ratchet bar 41, but cannot move upward, so the installation box 35 cannot move upward either. At this time, when the pressing plate 8 drives the inclined surface push block 49 on the right to move upward through the push rod 40, the inclined surface push block 49 on the right can be pushed to move to the right under the sliding cooperation of the inclined surface push block 49 and the right guide inclined surface 50, and then the ratchet block 36 on the right is driven to disengage from the ratchet bar 41 on the right, and then the installation box 35 can move upward;

[0039] Therefore, when the clamp 33 is connected to the connector 34, it has a two-way self-locking effect. When the lifting plate 4 moves downward, the pressing plate 8 presses the movable plate 7 so that the movable plate 7 is pressed against the upper end of the fixed plate 6, and the clamping force is provided by the connection between the clamp 33 and the connector 34. Under the pressure of the lifting plate 4, the pressing plate 8 is always in a downward pressure state. Therefore, during injection molding, the movable plate 7 always maintains a pressure state. During demolding, the lifting plate 4 first moves upward to cancel the pressure on the pressing plate 8. After the pressure of the pressing plate 8 disappears, the additional pressure of the movable plate 7 on the injection molded part will also disappear. However, under the self-locking effect, the movable plate 7 and the fixed plate 6 remain connected. In this state, a buffer effect can be provided for the injection molded parts inside the movable template 7 and the fixed template 6 before demolding, so that the injection molded parts inside the movable template 7 and the fixed template 6 remain stable after losing part of the pressure first, and then when the lifting plate 4 drives the pressure plate 8 to move upward, it drives the movable template 7 upward to complete the separation from the fixed template 6 and realize demolding, thereby avoiding the situation that the movable template 7 directly moves upward during demolding because the injection molded parts are tightly connected with the movable template 7 and the fixed template 6 during injection molding, causing the upper end of the injection molded parts to suddenly lose pressure and be demolded, resulting in unexpected situations such as adhesion, deformation and tearing of the injection molded parts under the action of inertia, thereby affecting the production quality of the injection molded parts.

[0040] like Fig.12 As shown, the upper end of the inclined surface push block 49 located on the upper side of the guide inclined surface 50 and the lower end of the inclined surface push block 49 located on the lower side of the guide inclined surface 50 are respectively provided with spring telescopic rods; the spring telescopic rod includes a push cylinder 45 and a support rod 46 connected axially in a sliding manner, and a support spring 47 is fixedly connected between the push cylinder 45 and the support rod 46. The end of the push cylinder 45 away from the support rod 46 is pressed against the surface of the inclined surface push block 49, and the end of the support rod 46 away from the push cylinder 45 is fixedly connected to the inner wall of the installation box 35. The support spring 47 plays a supporting role and is used to support the installation box 35 on the inclined surface push block The ratchet block 36 is pushed by 49 to assist in supporting the installation box 35 in the process of normal up and down movement, and the installation box 35 can move normally and then move with the assistance of the support spring 47 to make up for the distance the pressure plate 8 moves upward. When the inclined surface push block 49 moves away from the inclined surface block 39, it can press the push cylinder 45, driving the push cylinder 45 to move axially on the surface of the support rod 46 and press the support spring 47. The support spring 47 can make the push cylinder 45 support the inclined surface push block 49, so that the inclined surface push block 49 remains connected to the inclined surface block 39.

[0041] The end of the support rod 46 corresponding to the pushing cylinder 45 is slidably connected to the inside of the pushing cylinder 45, and the support spring 47 is located inside the pushing cylinder 45. The inner walls of the pushing cylinder 45 are respectively provided with annular limiting grooves, and the circumferential surface of the lower end of the support rod 46 is respectively fixedly connected with a plurality of annular limiting blocks 48, which are respectively slidably connected to the limiting grooves. Under the sliding cooperation between the limiting blocks 48 and the limiting grooves, the support rod 46 can stably move axially and can prevent the support rod 46 from detaching from the pushing cylinder 45, thereby ensuring the normal use of the device.

[0042] The four corners of the upper end of the fixed template 6 are respectively fixedly connected with vertically arranged positioning holes 30, and the four corners of the lower end of the movable template 7 are respectively upwardly provided with positioning pins 31 that can be slidably connected with the positioning holes 30. When the fixed template 6 and the movable template 7 are in contact with each other, the positioning pins 31 are respectively inserted into the positioning holes 30 to improve the stability of the movable template 7 and the fixed template 6 when pressurized.

[0043] The four corners of the upper end of the pressure plate 8 are respectively fixedly connected with a pressure cylinder 23 with an opening at the lower end, and a pressure spring 22 is respectively arranged inside the pressure cylinder 23. The four corners of the upper end of the movable template 7 are respectively fixedly connected with a pressure rod 24, and the upper end of the pressure rod 24 is respectively fixedly connected with a spring baffle, which is slidably connected to the inside of the pressure cylinder 23, and the pressure spring 22 is respectively located on the upper side of the spring baffle. When the movable template 7 is pressed against the surface of the fixed template 6 under the push of the pressure plate 8, the pressure spring 22 is in a compressed state and can always be in a state of providing pressure to the fixed template 6, thereby maintaining the clamping force between the movable template 7 and the fixed template 6 during injection molding, thereby ensuring the tightness and firmness of the connection; and providing a space for the pressure plate 8 to move when the mounting box 35 cannot be moved, thereby facilitating the normal use of the device.

[0044] The surfaces of the pressing plate 8 and the movable template 7 are respectively provided with a plurality of interconnected connecting holes, and a push rod 25 is respectively arranged inside the upper and lower corresponding connecting holes, and the bottom of the push rod 25 is respectively fixedly connected with a first baffle 26, and the bottom of the movable template 7 corresponding to the first baffle 26 is respectively provided with a groove 29 that can engage with the first baffle 26; the upper end of the push rod 25 is downwardly provided with a sliding groove, and the inside of the sliding groove is respectively axially slidably connected with a sliding rod 27, and a tension spring 28 is respectively fixedly connected between the lower end of the sliding rod 27 and the bottom of the sliding groove, and the upper end of the sliding rod 27 is respectively fixedly connected with a connecting plate, and the connecting plate is respectively fixedly connected to the mounting frame 3, such as Figure 7As shown, when the pressure plate 8 is located on the upper side, the bottom of the top plate is in a state of protruding from the bottom of the pressure plate 8, and the top rod 25 is used to facilitate the demolding of the injection molded parts. When the movable template 7 moves downward, the first baffle 26 is clamped by the groove 29 to keep the bottom of the movable template 7 flat, and then the top rod 25 is driven to move downward, and the slide bar 27 is fixedly connected to the mounting frame 3 through the connecting plate. Therefore, when the top rod 25 moves downward, the slide bar 27 cannot move downward, and the tension spring 28 inside the sliding groove is stretched during the downward movement of the slide bar 27. When the pressure plate 8 moves upward and is in the process of resetting, the tension spring 28 gradually resets and drives the top rod 25 to move upward and reset, and protrudes from the lower end of the movable template 7 during the continuous upward movement of the movable template 7, so that the injection molded parts connected to the movable template 7 are removed, which facilitates the demolding of the injection molded parts.

[0045] The control structure includes an active dial wheel 13 rotatably connected to the inner wall of the protection box 9, a motor 12 is arranged on the rear side of the active dial wheel 13, the motor 12 is fixedly connected to the inner wall of the protection box 9, and the power output end of the motor 12 is fixedly connected to the middle part of the active dial wheel 13; a second groove wheel 16 is meshed on the lower side of the active dial wheel 13, the second groove wheel 16 is rotatably connected to the inner wall of the protection box 9, a first bevel gear 17 is coaxially fixedly connected to the rear side of the second groove wheel 16, a second bevel gear 18 is meshed on the lower side of the first bevel gear 17, the second bevel gear 18 is rotatably connected to the inner wall of the protection box 9, a first pulley 19 is coaxially fixedly connected to the lower end of the second bevel gear 18, a second pulley 20 is coaxially fixedly connected to the bottom of the turntable 2, the first pulley 19 and the second pulley 20 A transmission belt is sleeved in between, and the motor 12 is used to drive the lifting plate 4 to rise and fall and the turntable 2 to rotate. When the motor 12 rotates, the active groove wheel can be driven to rotate synchronously. When the active groove wheel rotates, it can drive the second groove wheel 16 to rotate ninety degrees through the engagement with the second groove wheel 16, and then drive the turntable 2 to rotate ninety degrees under the engagement of the first bevel gear 17 and the second bevel gear 18 and the transmission of the first pulley 19, the second pulley 20 and the transmission belt. There are four fixed templates 6 at the upper end of the turntable 2 and they are evenly distributed in a ring shape on the upper end of the turntable 2. The angle between every two fixed templates 6 is also ninety degrees. Therefore, every time the turntable 2 rotates intermittently once, a fixed template 6 will move to the lower side of the movable template 7 and correspond to the movable template 7, which is convenient for injection molding operation.

[0046] The upper side of the active dial wheel 13 is meshed with a first groove wheel 14, and the first groove wheel 14 is rotatably connected to the inner wall of the protection box 9. The front end of the first groove wheel 14 is coaxially fixedly connected to a driving gear 15, and the upper side of the driving gear 15 is meshed with a driven gear 21. The front end of the driven gear 21 is coaxially fixedly connected to a rotating plate 10, and the rotating plate 10 is rotatably connected to the inner wall of the protection box 9. A hinge rod 11 is hinged at a non-center position of the front end of the rotating plate 10, and the other end of the hinge rod 11 is hinged to the rear end of the lifting plate 4. After the active dial wheel 13 drives the second groove wheel 16 to rotate, the first groove wheel 14 can be driven to rotate ninety degrees under the continued rotation of the active dial wheel 13. When the first groove wheel 14 rotates, the driven gear 21 is driven to rotate through the driving gear 15, and the driving When the gear 15 rotates ninety degrees, it can drive the driven gear 21 to rotate one circle, and then drive the rotating plate 10 to rotate one circle, and then the lifting plate 4 is adjusted to rise and fall once through the linkage of the hinge rod 11 to complete one injection molding operation, and it is convenient to alternate with the turntable 2 to continuously produce injection molded parts; and in order to ensure the stability and firmness of the pressing plate 8 when it is in use, a plurality of reinforcing brackets 51 are fixedly connected to the upper end of the pressing plate 8, and the upper ends of the reinforcing brackets 51 are respectively fixedly connected to the lifting plate 4. The pressure generated when the lifting plate 4 moves downward acts on the pressing plate 8 through the reinforcing brackets 51. The reinforcing brackets 51 can withstand the downward pressure exerted by the lifting plate 4, thereby ensuring the tightness of the connection between the movable template 7 and the fixed template 6 and the stability of the pressing plate 8 when in use.

[0047] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art to which the present invention belongs may make various modifications or additions to the specific embodiments described or replace them in similar ways.

Claims

1. A brake-locked mold turntable injection molding machine, comprising an injection molding machine (5), a turntable (2) located at the lower side of the injection molding machine (5), a plurality of fixed mold plates evenly distributed in an annular shape at the upper end of the turntable (2), and a movable mold plate (7) installed at the lower end of the injection molding machine (5), characterized in that: The lower end of the turntable (2) is rotatably connected to a base (1), the rear side of the base (1) is fixedly connected to a protective box (9), the interior of the protective box (9) is equipped with a control structure for controlling the intermittent rotation of the turntable (2), each rotation of the turntable (2) drives a fixed template (6) to move to the lower side of the movable template (7), the upper side of the base (1) is fixedly connected to a mounting frame (3), the inner side of the mounting frame (3) is slidably connected to a lifting plate (4) capable of being raised and lowered, the injection molding machine (5) is fixedly connected to the lifting plate (4), and each rotation of the turntable (2) forms a structure in which the lifting plate (4) is raised and lowered once.

2. The brake-locked turntable injection molding machine according to claim 1, characterized in that The upper end of the movable platen (7) is slidably connected to a pressing plate (8) capable of moving up and down, the pressing plate (8) is fixedly connected to the lifting plate (4), the front and rear sides of the left and right ends of the pressing plate (8) are respectively fixedly connected to mold lockers (33), and the front and rear sides of the left and right ends of the fixed platen (6) are respectively fixedly connected to connectors (34) connected to the mold lockers (33), when the movable platen (7) moves downward with the lifting plate (4) to fit with the fixed platen (6), the movable platen (7) and the fixed platen (6) are locked by connecting the mold lockers (33) and the connectors (34).

3. The brake-locked turntable injection molding machine according to claim 2, characterized in that: The connector (34) comprises a fixed plate (42) and ratchet bars (41) respectively slidably connected to the two ends of the fixed plate (42), the ratchet teeth on the surfaces of the two ratchet bars (41) are in opposite directions, the upper and lower ends of the fixed plate (42) are respectively fixedly connected to the fixed template (6) and the base (1), and the upper and lower sides between the ratchet bar (41) and the fixed plate (42) are respectively connected to reset springs (44).

4. The brake-locked turntable injection molding machine according to claim 3, characterized in that: The mold locker (33) comprises a mounting box (35) and ratchet blocks (36) slidably connected to the corresponding two sides of the inner wall of the mounting box (35); the ratchet blocks (36) correspond to the ratchet bars (41) on the lower side and can mesh with each other; the upper and lower ends of the two ratchet blocks (36) are respectively fixedly connected with meshing springs (38); the other ends of the meshing springs (38) are respectively fixedly connected to the inner wall of the mounting box (35).

5. The brake-locked turntable injection molding machine according to claim 4, characterized in that: The outer end surfaces of the ratchet blocks (36) are respectively fixedly connected with inclined plane blocks (39), and corresponding ends of the two corresponding inclined plane blocks (39) are respectively provided with guiding inclined planes (50), and the two corresponding guiding inclined planes (50) are arranged parallel to each other, and the surfaces of the guiding inclined planes (50) are respectively slidably matched with inclined plane push blocks (49) that can move up and down, and the surfaces of the inclined plane push blocks (49) are respectively fixedly connected with vertically arranged push rods (40), and the upper ends of the push rods (40) are respectively fixedly connected to the pressure plates (8).

6. The brake-locked turntable injection molding machine according to claim 5, characterized in that: The upper end of the inclined surface push block (49) located on the upper side of the guiding inclined surface (50) and the lower end of the inclined surface push block (49) located on the lower side of the guiding inclined surface (50) are respectively provided with spring telescopic rods; the spring telescopic rods include a pushing cylinder (45) and a supporting rod (46) which are axially slidably connected, a supporting spring (47) is fixedly connected between the pushing cylinder (45) and the supporting rod (46), one end of the pushing cylinder (45) away from the supporting rod (46) is pressed against the surface of the inclined surface push block (49), and one end of the supporting rod (46) away from the pushing cylinder (45) is fixedly connected to the inner wall of the installation box (35).

7. The brake-locked turntable injection molding machine according to claim 6, characterized in that: One end of the support rod (46) corresponding to the pushing cylinder (45) is slidably connected to the inside of the pushing cylinder (45), the support spring (47) is located inside the pushing cylinder (45), the inner wall of the pushing cylinder (45) is respectively provided with annularly distributed limiting grooves, and the circumferential surface of the lower end of the support rod (46) is respectively fixedly connected with a plurality of annularly distributed limiting blocks (48), and the limiting blocks (48) are respectively slidably connected to the limiting grooves.

8. The brake-locked turntable injection molding machine according to claim 7, characterized in that: The four corners of the upper end of the fixed template (6) are respectively fixedly connected with vertically arranged positioning holes (30), and the four corners of the lower end of the movable template (7) are respectively upwardly provided with positioning pins (31) that can be slidably connected with the positioning holes (30).

9. The brake-locked turntable injection molding machine according to claim 3, characterized in that: The four corners of the upper end of the pressure plate (8) are respectively fixedly connected with a pressure cylinder (23) with an opening at the lower end, and a pressure spring (22) is respectively arranged inside the pressure cylinder (23). The four corners of the upper end of the movable template (7) are respectively fixedly connected with a pressure rod (24), and the upper end of the pressure rod (24) is respectively fixedly connected with a spring baffle, and the spring baffle is respectively slidably connected to the inside of the pressure cylinder (23), and the pressure spring (22) is respectively located on the upper side of the spring baffle.

10. The brake-locked turntable injection molding machine according to claim 1, characterized in that: A plurality of reinforcing brackets (51) are fixedly connected to the upper end of the pressing plate (8), and the upper ends of the reinforcing brackets (51) are respectively fixedly connected to the lifting plates (4).

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